1. GRAPH
Definition: A PICTORIAL REPRESENTATION OF INFORMATION RECORDED IN A DATA TABLE. USED TO SHOW A RELATIONSHIP BETWEEN TWO OR MORE FACTORS.

2. DATA TABLE Definiton: AN ORGANIZED WAY OF PRESENTING INFORMATION.
Example: POPULATION OF Heddenville
YEAR X
# OF PEOPLE Y
2009
250
2010
375
2011
432
2012
628
2013
890
2014
1100
ORDERED PAIR ( X,Y ) EX.( 2009, 250 )

3. INFORMATION IN A DATA TABLE
INDEPENDENT VARIABLE (YEAR) THE FACTOR THAT THE SCIENTIST PURPOSELY CHANGES
X-AXIS
DEPENDENT VARIABLE (# OF PEOPLE) THE FACTOR IN AN EXPERIMENT A SCIENTIST WANTS TO OBSERVE OR MEASURE
Y-AXIS
Y-AXIS
X-AXIS

4. TYPES OF GRAPHS 1. LINE GRAPH DEMONSTRATES CONTINUOUS
CHANGE USING ONE OR MORE LINES TO CONNECT A SERIES OF POINTS.

5. STEPS FOR MAKING A LINE GRAPH
1. PLACE THE INDEPENDENT VARIABLE ON THE X-AXIS (horizontal) AND PLACE THE DEPENDENT VARIABLE ON THE Y-AXIS (vertical).
2. USING YOUR DATA TABLE, LABEL THE X & Y AXIS WITH A TITLE.
3. CREATE A SCALE WITH EVEN INTERVALS THAT WILL ACCOMMODATE THE DATA. DO NOT PUT YOUR DATA VALUES AS YOUR SCALE.

6. STEPS FOR MAKING A LINE GRAPH CONT.
4. PLOT YOUR ORDERED PAIRS USING A PENCIL. GO “OVER” ON THE X-AXIS AND “UP” ON THE Y-AXIS.
5. CONNECT YOUR POINTS WITH A RULER FROM LEFT TO RIGHT.
6. TITLE AT THE TOP OF THE GRAPH THAT REPRESENTS THE X & Y AXIS COMBINED.

7. SAMPLE LINE GRAPH

8. NOW IT’S YOUR TURN…CREATE A LINE GRAPH ON YOUR GRAPH PAPER USING A RULER FOR: POPULATION OF HEDDENVILLE
YEAR X
# OF PEOPLE Y
2006
250
2007
375
2008
432
2009
628
2010
890
2011
1100

9. BAR GRAPH
2. USED TO SHOW CHANGE OR FOR MAKING A COMPARISON.

10. HOW TO MAKE A BAR GRAPH 1. USE AN APPROPRIATE SCALE FOR THE Y-AXIS.
2. LABEL THE X-AXIS WITH APPROPRIATE DESCRIPTORS
Ex. Months of Year, Names, Days of Week
3. PLOT DATA USING A RULER TO DRAW BARS
4. SHADE IN BARS AND MAKE A KEY FOR MULTIPLE BAR GRAPHS.
5. LABEL EACH AXIS AND TITLE GRAPH.

11. SAMPLE BAR GRAPH

12. NOW IT’S YOUR TURN…CREATE A BAR GRAPH ON YOUR GRAPH PAPER USING A RULER FOR: POPULATION OF HEDDENVILLE
YEAR X
# OF PEOPLE Y
2006
250
2007
375
2008
432
2009
628
2010
890
2011
1100